Answer:
D. oxygen atoms have twice as many protons as chlorine atoms
Ignore my writing answer is in pictute
If we use mile or something else it will be hard to measure in sky .
Because the mile or meters too short for the space,
Galaxy and stars are too long far away from us if we use mile or meter,
It till be take like miliion year to measure.
True. Ions can have a positive or negative charge.
